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Author |
M. Paar, B. Lebreton, M. Graeve, M. Greenacre, R. Asmus, H. Asmus |
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Title |
Food sources of macrozoobenthos in an Arctic kelp belt: trophic relationships revealed by stable isotope and fatty acid analyses |
Type |
Journal |
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Year |
2019 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Volume |
615 |
Issue |
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Pages |
31-49 |
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Keywords  |
Detritus Food web Macroalgae Macrofauna Polar coastal ecosystem Trophic markers |
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1190 |
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ISSN |
0171-8630, 1616-1599 |
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yes |
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Call Number |
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Serial |
8304 |
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Author |
Amandine Gamble, Romain Garnier, Thierry Chambert, Olivier Gimenez, Thierry Boulinier |
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Title |
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Type |
Journal |
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Year |
2019 |
Publication |
Ecology |
Abbreviated Journal |
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Volume |
101 |
Issue |
2 |
Pages |
e02923 |
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Keywords |
detectability eco-epidemiology immunity persistence sampling strategy study design wildlife |
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Programme |
333,1151 |
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Thesis |
Bachelor's thesis |
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ISSN |
1939-9170 |
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Approved |
yes |
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Call Number |
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Serial |
7715 |
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Title |
Influence of depredating cetaceans on albatross attraction and attendance patterns at fishing boats |
Type |
Journal |
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Year |
2018 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Volume |
605 |
Issue |
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Pages |
49-59 |
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Keywords |
Depredation Fisheries interactions GPS tracking Longliners Seabird foraging Sub-Antarctic Toothed whales Trophic interactions |
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Abstract |
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Programme |
109 |
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ISSN |
0171-8630, 1616-1599 |
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yes |
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Serial |
8214 |
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Author |
Dupont F, Picard G, Royer A, Fily M, Roy A, Langlois A, Champollion N, |
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Title |
Modeling the Microwave Emission of Bubbly Ice: Applications to Blue Ice and Superimposed Ice in the Antarctic and Arctic
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Type |
Journal Article |
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Year |
2014 |
Publication |
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING |
Abbreviated Journal |
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Volume |
Early Access Online |
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Pages |
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Keywords |
Dense media radiative transfer (DMRT) theory, Ice, microwave, Microwave FET integrated circuits, Microwave integrated circuits, Microwave measurement, Microwave radiometry, modeling, remote sensing, Snow, superimposed ice, Temperature measurement, |
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Programme |
1073 |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
0196-2892 |
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Approved |
yes |
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Call Number |
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Serial |
4248 |
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Title |
Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
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Journal |
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Year |
2020 |
Publication |
Journal of Animal Ecology |
Abbreviated Journal |
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Volume |
89 |
Issue |
3 |
Pages |
691-703 |
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Keywords |
demography fitness migration nutrient storage strategies site fidelity solar geolocation survival timing |
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Abstract |
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Programme |
1036 |
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Edition |
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ISSN |
1365-2656 |
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Approved |
yes |
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Call Number |
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Serial |
7690 |
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Author |
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Title |
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Type |
Journal |
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Year |
2018 |
Publication |
Ecography |
Abbreviated Journal |
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Volume |
41 |
Issue |
12 |
Pages |
2055-2066 |
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Keywords |
demography environmental disturbance individual behaviour |
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Abstract |
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Programme |
333 |
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Edition |
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ISSN |
1600-0587 |
ISBN |
1600-0587 |
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Approved |
yes |
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Call Number |
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Serial |
7418 |
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Author |
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Title |
Demographic responses of a site-faithful and territorial predator to its fluctuating prey: long-tailed skuas and arctic lemmings
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Type |
Journal Article |
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Year |
2014 |
Publication |
Journal of Animal Ecology |
Abbreviated Journal |
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Volume |
83 |
Issue |
2 |
Pages |
375-387 |
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Keywords |
demographic buffering, environmental variance, floaters, population cycles, territoriality, |
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Abstract |
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Programme |
1036 |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1365-2656 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
5526 |
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Author |
Marina Renedo, Zoyne Pedrero, David Amouroux, Yves Cherel, Paco Bustamante |
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Title |
Mercury isotopes of key tissues document mercury metabolic processes in seabirds |
Type |
Journal |
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Year |
2021 |
Publication |
Chemosphere |
Abbreviated Journal |
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Volume |
263 |
Issue |
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Pages |
127777 |
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Keywords |
Demethylation Detoxification Metabolism Methylmercury Moult |
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Abstract |
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Programme |
109 |
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ISSN |
0045-6535 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
8084 |
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Author |
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Title |
How do fishing practices influence sperm whale (Physeter macrocephalus) depredation on demersal longline fisheries? |
Type |
Journal |
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Year |
2018 |
Publication |
Fisheries Research |
Abbreviated Journal |
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Volume |
206 |
Issue |
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Pages |
14-26 |
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Keywords |
Demersal longline Depredation Fishing practices Patagonian toothfish Sperm whale |
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Abstract |
Marine mammal depredation on fisheries (animals removing fish caught on fishing gear) is a worldwide issue involving socio-economic and ecological consequences. Longline fisheries are the most impacted by odontocete (toothed whales) depredation. While technological means have provided limited efficacy in reducing depredation, this study examined the fishing practices influencing both the proportion of depredated longline sets and the amount of fish removed by whales. We used an 8-year dataset from the Patagonian toothfish (Dissostichus eleginoides) longline fisheries operating in Crozet and Kerguelen Economic Exclusive Zones (EEZs) (South Indian Ocean) and GLMMs to investigate sperm whale (Physeter macrocephalus) depredation. Sperm whale depredation occurred on 61% of 5260 sets in Crozet and 41% of 16,902 sets in Kerguelen, and resulted in minimum estimated toothfish losses of 702 tons and 2649 tons, respectively, in the two areas. The probability of depredation decreased in winter months, increased with depth fished and decreased when vessels travelled over distances of >60?km from fishing grounds with encountering depredation. These findings suggest the natural spatio-temporal distribution of sperm whales and their ability to follow vessels over limited ranges influence the number of captured fish removals. The amount of depredated toothfish decreased with the speed at which longline sets were hauled and increased with the soaking time of sets suggesting that whales may depredate sets during both hauling and soaking operations. Together, these observations indicate that rates of depredation may be influenced by the conditions of fishing operations and could therefore be employed to implement strategies of avoidance in all fisheries facing similar depredation impacts. |
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Programme |
109 |
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ISSN |
0165-7836 |
ISBN |
0165-7836 |
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Approved |
yes |
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Call Number |
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Serial |
7121 |
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Author |
Durand G, Gagliardini O, Favier L, Zwinger T, le Meur E, |
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Title |
Impact of bedrock description on modeling ice sheet dynamics
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Type |
Journal Article |
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Year |
2011 |
Publication |
Geophys. Res. Lett. |
Abbreviated Journal |
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Volume |
38 |
Issue |
20 |
Pages |
L20501- |
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Keywords |
DEM, bedrock, ice sheet, 0726 Cryosphere: Ice sheets, 0774 Cryosphere: Dynamics, 0798 Cryosphere: Modeling (1952, 4316), |
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Abstract |
Recent glaciological surveys have revealed a significant increase of ice discharge from polar ice caps into the ocean. In parallel, ice flow models have been greatly improved to better reproduce current changes and forecast the future behavior of ice sheets. For these models, surface topography and bedrock elevation are crucial input parameters that largely control the dynamics and the ensuing overall mass balance of the ice sheet. For obvious reasons of inaccessibility, only sparse and uneven bedrock elevation data is available. This raw data is processed to produce Digital Elevation Models (DEMs) on a regular 5 km grid. These DEMs are used to constrain the basal boundary conditions of all ice sheet models. Here, by using a full-Stokes finite element code, we examine the sensitivity of an ice flow model to the accuracy of the bedrock description. In the context of short-term ice sheet forecast, we show that in coastal regions, the bedrock elevation should be known at a resolution of the order of one kilometer. Conversely, a crude description of the bedrock in the interior of the continent does not affect modeling of the ice outflow into the ocean. These findings clearly indicate that coastal regions should be prioritized during future geophysical surveys. They also indicate that a paradigm shift is required to change the current design of DEMs describing the bedrock below the ice sheets: they must give users the opportunity to incorporate high-resolution bedrock elevation data in regions of interest.
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Programme |
1053 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
AGU |
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ISSN |
0094-8276 |
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yes |
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Call Number |
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Serial |
3452 |
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